mesa: implement AMD_shader_stencil_export

It's just an alias of the ARB variant with some GLSL compiler changes.

Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index 5bb3a6f25a3..18bff88deec 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -255,6 +255,16 @@ _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
       state->AMD_conservative_depth_enable = (ext_mode != extension_disable);
       state->AMD_conservative_depth_warn = (ext_mode == extension_warn);
       unsupported = !state->extensions->AMD_conservative_depth;
+   } else if (strcmp(name, "GL_AMD_shader_stencil_export") == 0) {
+      state->AMD_shader_stencil_export_enable = (ext_mode != extension_disable);
+      state->AMD_shader_stencil_export_warn = (ext_mode == extension_warn);
+
+      /* This extension is only supported in fragment shaders.
+       * Both the ARB and AMD variants share the same ARB flag
+       * in gl_extensions.
+       */
+      unsupported = (state->target != fragment_shader)
+	 || !state->extensions->ARB_shader_stencil_export;
    } else if (strcmp(name, "GL_OES_texture_3D") == 0 && state->es_shader) {
       state->OES_texture_3D_enable = (ext_mode != extension_disable);
       state->OES_texture_3D_warn = (ext_mode == extension_warn);